Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
권호 표지
DOI QR코드

DOI QR Code

Comparative Analysis of Performance for DGPS and SBAS in Korea Region

국내 지역에서의 DGPS와 SBAS 성능 비교 분석

  • 임철순 (세종대학교 항공우주공학과) ;
  • 박병운 (세종대학교 항공우주공학과)
  • Received : 2017.06.06
  • Accepted : 2017.06.26
  • Published : 2017.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

The international maritime organization(IMO) has defined performance requirements for future maritime navigation through IMO resolution A.915(22) in 2001. Many DGPS systems currently providing DGPS services do not meet the performance requirements specified in IMO resolution A.915(22). The use of SBAS is considered as one of the DGPS replacement and supplementary system for coping with the increase in demand performance and providing safe positioning service. In particular, since a large amount of budget is required to rearrange the existing DGPS reference stations, a method which transmits differential corrections generated by using SBAS message has been proposed. In this paper, we compare and analyze the performance of NDGPS which is operated by the National Maritime PNT Office of the ministry of oceans and fisheries(MOF) in Korea and MSAS in Japan. Also, we verify that SBAS, as alternative and complementary system, meets the performance requirement specified in IMO resolution A.915(22).

2001년 국제해사기구(IMO)는 IMO 결의안 A.915(22)를 통해 미래 해양항법을 위한 성능 요구조건을 규정하였다. 현재 DGPS 서비스를 제공 중인 다수의 DGPS 시스템은 IMO 결의안 A.915(22)에서 규정한 성능요구조건을 충족하지 못한다. 이러한 요구성능 증가에 대처하고 안전한 측위서비스 제공을 위한 DGPS 대체 및 보완 기술 중 하나로 SBAS의 활용이 고려되고 있다. 특히, 기존에 설치된 DGPS 기준국을 재정비하기 위해서는 매우 많은 예산이 소요되므로, SBAS 메시지를 활용하여 보정정보를 생성하여 전송하는 방법이 제안된 바 있다. 본 논문에서는 해양 사용자에 대해서 해양수산부 국립해양측위정보원에서 운영하고 있는 NDGPS와 일본의 MSAS의 성능을 비교분석 하였다. 또한, DGNSS 시스템의 보완 및 대체 시스템으로써 SBAS가 IMO 결의안 A.915(22)에서 규정한 요구조건을 충족하는지 검증하였다.

Keywords

References

  1. G. J. Song, "The proposal for positioning accuracy analysis and stimulating utilization of NDGPS, M.S. dissertation," Chungnam National University, Daejeon, Korea, 2007.
  2. H. D. Kong, "A Study on the signal interference and countermeasures of differential global positioning system among the neighboring countries, Ph.D. dissertation," Korea Maritime and Ocean University, Busan, Korea, 2007.
  3. IMO, Revised Maritime Policy and Requirements for a Future Global Navigation Satellite System Resolution A.915(22), 2001.
  4. M. Porretta, D. J. Banos, M. Crisci, G. Solari and A. Fiumara, GNSS Evolutions for Maritime, Inside GNSS, 2016.
  5. IALA, IALA Recommendation R-135 On The Future of DGNSS, IALA, 2008
  6. B. W. Park, Comparison of the DGPS Performance by Various PRC Filtering Methods, M.S. dissertation, Seoul National University, Seoul, Korea, 2003.
  7. H. H. Park, A Study on the Ground Based Wide Area Differential GPS Implementation, Ph.D. dissertation, Mokpo National Maritime University, Mokpo, Korea, 2014.
  8. Y. S. Yun, D. Y. Kim, C. S. Pyong, C. D. Kee, "Performance Analysis of Korean WADGPS Algorithms with NDGPS Data," in Proceedings of the 17th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2004), Long Beach, CA, pp. 1329-1339, September 2004.
  9. U.S. Coast Guard Navigation Center (NAVCEN). DGPS SITE CONFIGURATION INFORMATION [Internet]. Available: https://www.navcen.uscg.gov/
  10. RTCM, Recommended Standards for Differential GNSS (Global Navigation Satellite System) Service, Version 2.3, RTCM Standard 10402.3, 2001.
  11. B. W. Park, A Study on Reducing Temporal and Spatial Decorrelation Effect in GNSS Augmentation System: Consideration of the Correction Message Standardization, Ph.D. dissertation, Seoul National University, Seoul, Korea, 2008.
  12. RTCA, Minimum Operational Performance Standards for Global Positioning System/Wide Area Augmentation System Airborne Equipment, RTCA DO-229D, 2006.
  13. H. J. Seok, Study on the Accuracy Improvement and Integrity Information Generation of the Low-cost GPS Receiver for the Expansion of Drone Operation, M.S. dissertation, Sejong University, Seoul, Korea, 2016.